Add an abi-check.sh script that shows how to run the abi-compliance-checker, update release creation steps slightly.

abi-check.sh

@@ -0,0 +1,42 @@
+#!/bin/sh
+
+prev=0.16
+release=0.17
+
+# ... clone json-c, abi-compliance-checker, abi-dumper
+
+mkdir build
+cd build
+CFLAGS=-Og cmake -DCMAKE_INSTALL_PREFIX=~/json-c-installs/json-c-${release} ..
+make && make test && make install
+
+# Assume the old version has already been built
+
+cd ~/abi-compliance-checker
+mkxml()
+{
+	ver="$1"
+cat <<EOF > json-c-${ver}.xml
+<foo>
+<version>
+   ${ver}
+</version>
+
+<headers>
+../json-c-installs/json-c-${ver}/include/json-c
+</headers>
+
+<libs>
+../json-c-installs/json-c-${ver}/lib64/libjson-c.so
+</libs>
+</foo>
+EOF
+}
+mkxml ${release}
+mkxml ${prev}
+
+perl abi-compliance-checker.pl -lib json-c -dump json-c-${prev}.xml -dump-path ./ABI-${prev}.dump
+perl abi-compliance-checker.pl -lib json-c -dump json-c-${release}.xml -dump-path ./ABI-${release}.dump
+perl abi-compliance-checker.pl -l json-c -old ABI-${prev}.dump -new ABI-${release}.dump
+
+echo "look in compat_reports/json-c/..."